TY - JOUR
T1 - Electromechanical fracture analysis for corners and cracks in piezoelectric materials
AU - Hwu, Chyanbin
AU - Ikeda, T.
N1 - Funding Information:
The authors thank Mr. T.L. Kuo for carrying out the numerical examples, and the National Science Council, Taiwan, ROC for support through Grant NSC 95-2221-E-006-144-MY3, and Kyoto University for support through Grant-in-Aid for the 21st century Center of Excellence (COE) program of the Ministry of Education, Culture, Sports, Science and Technology of Japan.
PY - 2008/11
Y1 - 2008/11
N2 - Corners and cracks are usually studied separately in the literature. To build a bridge connecting these two different but similar topics, in this paper the solutions for piezoelectric multi-wedges, which cover corners and interface corners, are used to study the cracks and interface cracks in piezoelectric materials. Moreover, the stress/electric intensity factors defined for cracks, interface cracks and interface corners are also extended to the general corners. By taking the special feature of Stroh formalism for anisotropic elasticity, all the solutions presented in this paper for piezoelectric materials preserve the same matrix form as those of the corresponding anisotropic problems. To see more clearly about the piezoeffects on the corners and cracks, most of the complex matrix form solutions are expanded in real component form for two typical piezoelectric ceramics with different poling directions.
AB - Corners and cracks are usually studied separately in the literature. To build a bridge connecting these two different but similar topics, in this paper the solutions for piezoelectric multi-wedges, which cover corners and interface corners, are used to study the cracks and interface cracks in piezoelectric materials. Moreover, the stress/electric intensity factors defined for cracks, interface cracks and interface corners are also extended to the general corners. By taking the special feature of Stroh formalism for anisotropic elasticity, all the solutions presented in this paper for piezoelectric materials preserve the same matrix form as those of the corresponding anisotropic problems. To see more clearly about the piezoeffects on the corners and cracks, most of the complex matrix form solutions are expanded in real component form for two typical piezoelectric ceramics with different poling directions.
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U2 - 10.1016/j.ijsolstr.2008.06.011
DO - 10.1016/j.ijsolstr.2008.06.011
M3 - Article
AN - SCOPUS:51649129955
SN - 0020-7683
VL - 45
SP - 5744
EP - 5764
JO - International Journal of Solids and Structures
JF - International Journal of Solids and Structures
IS - 22-23
ER -